{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x7a7c0f26636de2656231697ce16714b3305c5a8d0b9fc4c20f36ee5244a3ecbb",
    "signature": "0x45a01a48b86f4b441873cf490631c55035cf887ece6dbba2a8da53eb48d01b49257dae3f10c9bb4816693f129262640199bf4f328f45130651e1264c844662c21b",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}